Lisboa, M., & Handford, M. (2012). Business advantage: Advanced Class audio CDs. Cambridge: Cambridge University Press.
Chicago Style aipamenaLisboa, Martin., và Michael Handford. Business Advantage: Advanced Class Audio CDs. Cambridge: Cambridge University Press, 2012.
MLA aipamenaLisboa, Martin., và Michael Handford. Business Advantage: Advanced Class Audio CDs. Cambridge: Cambridge University Press, 2012.
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